As a fourth grade teacher in the central California foothills, I am always looking for nonfiction titles with high interest for my classroom. A friend bought this book from Barry Tessman's widow and I immediately ordered a copy. We study Explorers and Geographers as part of our 4th grade curriculum and this book leads into a great discussion about modern day exploring. Pictures and maps are easy to read, text and font grade-appropriate, natural history and wildlife pictures very appealing.